<template>
  <view class="cart-container" v-if="cart.length !== 0">
    <!-- 收货地址组件 -->
    <my-address></my-address>
    <!-- 购物车商品列表的标题区域 -->
    <view class="cart-title">
      <!-- 左侧的图标 -->
      <uni-icons type="shop" size="18"></uni-icons>
      <!-- 描述文本 -->
      <text class="cart-title-text">购物车</text>
    </view>
    <!-- 商品列表区域 -->   
    <uni-swipe-action>
          <block v-for="(goods, i) in cart" :key="i">
      <uni-swipe-action-item :right-options="options" 
      @click="swipeActionClickHandler(goods)">
        <my-goods :goods="goods" show-radio="true" showNum
        @radio-change="radioChangeHandler" @num-change="numberChangeHandler">
        </my-goods>
      </uni-swipe-action-item>
          </block>
    </uni-swipe-action>
    <my-settle></my-settle>
  </view>
    <!-- 空白购物车区域 -->
    <view class="empty-cart" v-else>
      <image src="/static/cart_empty@2x.png" class="empty-img"></image>
      <text class="tip-text">空空如也~</text>
    </view>
</template>

<script>
// 导入自己封装的 mixin 模块
import badgeMix from '@/mixins/tabbar-badge.js'
import {mapState,mapMutations} from 'vuex'
  export default {
    data() {
      return {
        options:[
          {
            text:'删除',
            style:{
              backgroundColor:'#C00000'
            }
          }
        ]
      };
    },
    mixins:[badgeMix],
    computed:{
      ...mapState('m_cart',['cart'])
    },
    methods:{
      ...mapMutations('m_cart',['updateGoodsState','updateGoodsCount',
      'removeGoodsById']),
      radioChangeHandler(e){
        this.updateGoodsState(e)
      },
      numberChangeHandler(e){
        this.updateGoodsCount(e)
      },
      swipeActionClickHandler(goods){
        this.removeGoodsById(goods.goods_id)
      }
    }
  }
</script>

<style lang="scss">
.cart-title {
  height: 40px;
  display: flex;
  align-items: center;
  font-size: 14px;
  padding-left: 5px;
  border-bottom: 1px solid #efefef;
  .cart-title-text {
    margin-left: 10px;
  }
}
.cart-container{
  padding-bottom: 50px;
}
.empty-cart {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 150px;

  .empty-img {
    width: 90px;
    height: 90px;
  }

  .tip-text {
    font-size: 12px;
    color: gray;
    margin-top: 15px;
  }
}
</style>
